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Rail Installation Manual

MFR™ 13.5 (KEYMOD) Rail

The MFR Rail Systems from Daniel Defense utilize the Keymod attachment system for incredible weight savings as well as superior cooling, ergonomics, and modularity while maintaining the strength and durability expected from Daniel Defense. Keymod attachment points are located on side and bottom positions of the rail and feature an uninterrupted 1913 Picatinny rail on top. Its sleek bolt-up system increases strength and reduces the overall diameter of the rail making it easier to control, all while utilizing our Bolt-up System barrel nut. Anti-rotation tabs come standard for ease of installation and alignment. The MFR can be used with a pinned low-profile gas block on pistol, carbine, mid-length or rifle length gas systems.

KEY FEATURES

Light Weight Free Floating Barrel Design

Steel Barrel Nut

Uninterrupted Mil-Spec 1913 Picatinny Upper Rail

Keymod Attachment Systems on Sides and Bottom

Patented Bolt-Up Mounting System

MATERIALS & CONSTRUCTION

Material: Aircraft Grade 6061-T6 Aluminum

Finish: Military Specification Type III Hard Coat Anodized

Weight of Rail = 7.60 oz

Weight Installed = 9.65 oz (with Mounting Hardware)

Made in the USA!

INSTALLATION REQUIREMENTS

Bolt-Up System Barrel Nut Wrench (Supplied) Allen Wrench (Supplied)

All Daniel Defense products carry a 100% satisfaction guarantee against defects in original materials and workmanship. If your Daniel Defense product shows evidence of such defects, Daniel Defense will make every accommodation to fix, repair, or replace your product in the most expeditious manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer’s products. Be sure to retain your sales slip as proof of purchase date when making a claim.